1K3A Chain A
Insulin-like growth factor 1 receptor (IGF1R)
Active — 99.2%DFG-inαC-inATPlike · ACP
Resolution
2.1 Å
R-value
0.212
Predicted activity confidence99.2%
Structure info
Alternate conformation—
Missing atoms0
Missing residues0
Salt bridge (KinCore)Saltbr-out
Sequence info
PDB sequence
VPDEWEVAREKITMSRELGQGSFGMVYEGVAKGVVKDEPETRVAIKTVNEAASMRERIEFLNEASVMKEFNCHHVVRLLGVVSQGQPTLVIMELMTRGDLKSYLRSLRPEMPSLSKMIQMAGEIADGMAYLNANKFVHRDLAARNCMVAEDFTVKIGDFGMTRDIETDRKGGKGLLPVRWMSPESLKDGVFTTYSDVWSFGVVLWEIATLAEQPYQGLSNEQVLRFVMEGGLLDKPDNCPDMLLELMRMCWQYNPKMRPSFLEIISSIKEEMEPGFREVSFYYSEENK
UniProt reference sequence
ITMSRELGQGSFGMVYEGVAKGVVKDEPETRVAIKTVNEAASMRERIEFLNEASVMKEFNCHHVVRLLGVVSQGQPTLVIMELMTRGDLKSYLRSLRPEMENNPVLAPPSLSKMIQMAGEIADGMAYLNANKFVHRDLAARNCMVAEDFTVKIGDFGMTRDIYETDYYRKGGKGLLPVRWMSPESLKDGVFTTYSDVWSFGVVLWEIATLAEQPYQGLSNEQVLRFVMEGGLLDKPDNCPDMLFELMRMCWQYNPKMRPSFLEIISSIKE
Aligned reference sequence
ITMS----------------RELGQGS----------------FGMVYEGVA--KGVVKDE-------------------------------PETRVAIKTVN--EAASMRE---------------------------RIEFLNEASVMKEF--------------------------NCHHVVRLLGVVSQGQ--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PTLVIMELMTR--------------GDLKSYLRS--LRPEMENNPVLA---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PPSLSKMIQMAGEIADGMAYLNAN---------------------------------------------KFVHRDL-----AARNCMVAE--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------DFTVKIGDFGMTRDIYETDYY--RKG-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------GKGLLPVRWMSPESLKD--------------------------------GVFT-TYSDVWSFGVVLWEIATL--A--------------EQPYQG--------------------------------------------------LSNEQVLRFVMEG--GLLDKPDNCP-----------------------------------------------------------------------------------------------------DMLFELMRMCWQYNPKMRPS--------------FLEIISSIKE
Shaded segments mark residues present in the UniProt reference but not resolved in this structure.
Projected alignment
ITMS----------------RELGQGS----------------FGMVYEGVA--KGVVKDE-------------------------------PETRVAIKTVN--EAASMRE---------------------------RIEFLNEASVMKEF--------------------------NCHHVVRLLGVVSQGQ--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PTLVIMELMTR--------------GDLKSYLRS--LRPEM-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------PSLSKMIQMAGEIADGMAYLNAN---------------------------------------------KFVHRDL-----AARNCMVAE--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------DFTVKIGDFGMTRDI-ETD----RKG-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------GKGLLPVRWMSPESLKD--------------------------------GVFT-TYSDVWSFGVVLWEIATL--A--------------EQPYQG--------------------------------------------------LSNEQVLRFVMEG--GLLDKPDNCP-----------------------------------------------------------------------------------------------------DMLLELMRMCWQYNPKMRPS--------------FLEIISSIKE
Activation segment
DFGMTRDI-ETD----RKG-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------GKGLLPVRWMSPE
Binding pocket
RELGQGSFGMVYEVAIKTVEFLNEASVMKEFN_HVVRLLGVLVIMELMTRGDLKSYLRSYLNANKFVHRDLAARNCMVIGDFGMT
Ligand info
Orthosteric ligand
ACP
Allosteric ligand
None
Ligand typeATPlike
Consensus conformation
DFG conformationin
αC-helix conformationin
Predicted activityactive
KinaDB — structure detail · data from Browse_each_pdb_structure.csv · PDB 1K3A, Chain A